JP2009101107A - Footwear sole suitable for goose-step type walk - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a footwear sole suitable for a goose-step type walk, an efficient walk without bending the knee of a supporting leg. <P>SOLUTION: A sole (1) is used having a downwardly high heel (2) composed of a greatly elastic supporting structure which is characterized by a sub air chamber (5) and a main air chamber (4) equipped with a vent valve (7) for adjusting time of reaching from the downed heel to the lowest limit of supporting height in a stepping motion. Then, the time to reach the lowest limit of supporting height of the heel (2), when the heel is compressed by the body weight loaded in standing upright on one leg, is adjusted to the time required between the downed heel and the upright standing leg position in a target walking speed. As a result, during the downed heel and the upright standing, the heel (2) passively elastically supports the supporting leg load of the walking motion, relaxing the impact and automatically holding the height of the hip socket position (H) in the standing posture at near the height of the one leg upright standing time, so that the efficient goose-step type walk is made possible. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

The present invention relates to the structure of a footwear bottom. More specifically, the present invention relates to a footwear bottom characterized by a heel of a highly elastic air chamber structure having a lower limit support height arrival time adjusting mechanism at the time of landing.

Although there are various bottom shapes for conventional footwear for walking, the ground contact surface curved in a cylindrical shape with a thick middle bottom is rolled onto the ground during a walking kick to increase the walking width and momentum even slightly. There seems to be footwear. Two typical examples will be described. One is to thicken the part of the foot where the phalangeal joint is placed and locally bend it into a cylindrical shape with a small radius, then roll it to the front leg of the rear leg during a walking kick to give propulsive force There are footwear to assist (see, for example, Patent Document 1). The other is footwear (see, for example, Patent Document 2) that rolls the ground contact surface with the curved portion closer to the middle foot than the former to assist walking propulsion. In addition, two typical footwear that is most approximate in terms of bottom function will be described. One is a dynamic foot support device in which the sole and toe bottom allow relative movement via a shock absorber, but it relaxes the stress and strain acting on the foot during walking, and it feels fashion Safety and comfort are obtained while maintaining the above (for example, see Patent Document 3). The other is a comfortable, painless high-heeled footwear (see, for example, Patent Document 4) that is comfortable to wear by having a means for relieving impact by denting a part of the sole at the time of wearing and a load distribution means. . However, none of these footwear is provided with a lower limit support height arrival time adjusting means at the bottom of the heel so as to reduce the vertical movement of the waist during walking.
Japanese translation of PCT publication No. 2002-513306 ([Summary], FIGS. 1, 5, 6, 25 and [Claim 1]) US Pat. No. 3,802,424 (FIGS. 5 and 6) JP-T-2005-511180 ([Summary], FIG. 1 and [Claim 1]) JP-T-2007-508867 ([Summary], FIG. 1 and [Claim 1])

Traditionally, footwear has been pursued for comfort, stability, friction, ease of movement and lightness, cushioning, etc., but the hip (waist) height during walking is kept almost constant while suppressing vertical movement. There was no invention of footwear that could be held.
The present invention keeps the hip joint position during walking approximately constant while suppressing the vertical movement near the height of one leg vertical standing leg, and can walk efficiently without folding the knee of the supporting leg. It provides footwear bottoms suitable for.

The means 1 includes a main air chamber (4) disposed in the bottom and a bottom and a high elastic support structure (2), wherein the main air chamber (4) is an air injection valve for adjusting the internal air pressure ( The auxiliary air chamber (5) having 8) is communicated via the ventilation valve (7) for adjusting the air flow amount arranged outside the bottom (2), and is communicated to the outside of the bottom (2). A bottom (1) with a bottom (2) is used. Then, a lower limit support arrival time adjustment function and a support strength adjustment function at the time of landing are added to the bottom (2).

The means 2 uses the bottom (1) of the bottom (1) described in the means 1 in which the auxiliary air chamber (5) is arranged in a plurality of times in the order of the auxiliary air chamber → the vent valve. And the multistage adjustment function of lower limit support height arrival required time and support strength at the time of landing in the bottom (2) is added.

The means 3 comprises a plurality of air chambers (4a, 4b) divided in the transverse direction in the bottom (1) described in the means 2, and each sub-air is provided in each air chamber. A bottom (1) is used which is a composite main air chamber (4) communicating with the chamber (5). Then, a support strength distribution adjusting function is added to the bottom (2).

The means 4 is a cylindrical shape in which the heel bottom (2) described in the means 1 to 3 and the ground contact surface (31) of the toe are convex downward, and the cross sectional radius (R) of the ground contact surface is one leg of the wearer. A bottom provided with a non-flexible toe bottom (3) having a length between the length from the knee joint center point to the ground contact point and the length from the hip joint position (H) center point to the ground contact point during vertical stance (1) ) Is used.
Then, a function is added to the bottom (1) to keep the hip joint position (H) suitable for straight leg walking constant up to the wide open leg width (δ).

The bottom (1) of the means 1 is pre-adjusted when the wearer first applies the air pressure common to the main air chamber (4) and the sub air chamber (5) and puts his weight on one leg vertically. The air injection valve (8) matches the pressure at which (2) is compressed and lowered, and is balanced and supported at the lower limit support height position. Next, the lower limit support height required time adjustment determined by changing the elastic characteristics is adjusted by the ventilation valve (7) to the required time for the walking operation from the landing gear to the vertical standing position in accordance with the wearer's pace. Then, at the time of walking, the walking movement from the vertical position to the vertical standing position is supported, the weight is supported by the leg while the impact of the landing position is eased at the base (2), and the hip position (H) is moved up and down (Δh ) Is automatically kept small and is kept substantially constant in the vicinity of the height of one leg standing vertically (see FIG. 10). In conventional shoes, as shown in FIGS. 14 and 15, approximately 3 to 8 cm of vertical movement (Δh) occurs. By the way, pre-adjustment of the common air pressure of the main air chamber (4) and the sub air chamber (5) is similar to the air pressure adjustment of the competition ball, using a commercially available manual air pump, with the air injection valve (8). Do.

The bottom (1) of the means 2 can be adjusted with higher accuracy than the bottom (1) of the means 1 by means of a vent valve (7) which can be adjusted in multiple stages (see step column 0027 for the procedure) (FIG. 10 (a)). A1 and column 0021).
Then, the walking motion from the vertical position to the vertical position is supported, the weight is supported by the leg while relaxing the impact of the landing position at the base (2), and the vertical movement (Δh) of the hip position (H) is automatically performed. It is possible to walk straight legs while keeping it almost constant in the vicinity of the height when one leg is vertically standing with more accuracy than that of the means 1 (see FIG. 1).

The bottom (1) of the means 3 can adjust the elastic support strength for each divided place by dividing the support place of the main air chamber (4) of the bottom (2) into front, rear, left, right, inside and outside.

The bottom (1) of the means 4 is not limited to the effect of being able to keep the hip joint position (H) height between the landing gear and the vertical stance movement described in the means 1 to 3 in addition to the stepping from the vertical stance leg, In addition, the hip joint position (H) can be maintained at a higher level by the action of the toe bottom (3) (specifically, see columns 0021 and 0033), and the open leg width (δ) can be increased. As a result, the footwear bottom is suitable for walking with a straight leg having a wide applicable open leg width (δ) (see FIGS. 11 and 12).

First embodiment

Hereinafter, a first embodiment of the present invention will be described. First, the configuration will be described.
(B) At least the main air chamber (4) is disposed between the midsole (12) of the bottom of the heel and the ground plate (9), and the back is placed under a highly elastic support structure provided to extend and support in the vertical direction. A bottom (1) with a high heel (2) and a flexible toe bottom (3) is used.
(B) The main air chamber (4) includes a vent valve (7) on the upper side of the side of the midsole (12) that passes through and communicates with the midsole (12) through the vent (46). And the auxiliary air chamber (5) provided with an air injection valve (8) is provided in a terminal made of a long flexible tube by turning around the lower part of the upper shell (11) and the upper part of the midsole (12), Connect to the vent valve (7).
With the above configuration, the lower limit support height arrival time adjustment function and the support strength adjustment function at the time of landing are added to the bottom (2). The first method is to adapt the support strength at the lower limit support height of the heel (2) to the weight of the wearer, and to minimize the support impact during landing on a straight leg to vertical standing. Can do. Second, in walking motion, the base of the free leg side (2) is kicked to the upper part of the body and then struck at the upper limit support height in the state where the base of the base (2) is stretched, and the moving weight is reduced. The lower limit support height is reached while being supported and passively compressed, but the time required to reach the lower limit support height from the physical upper limit support height of the heel (2) when landing is determined by the wearer's walking. The vertical movement (Δh) of the hip joint position (H) can be suppressed to a small value in accordance with the operation time of “Standing to Vertical Standing Position” of the speed. There is a pre-adjustment for that.
In the procedure, first, the air pressure in the main air chamber (4) and the sub air chamber (5) is adjusted so as to balance at the lower limit support height position with the overall heavy load when one leg is standing. Next, the adjustment screw (73) of the ventilation valve (7) is turned to change the ventilation cross-sectional area, and the time required to reach the lower limit support height when the heel bottom (2) is physically worn is determined by the wearer. Adjusting to the time value of “Landing to Vertical Standing Position”, which is the pace, straight legs with low vertical movement (Δh) of the body center of gravity between “Landing to Vertical Standing Position” while suppressing the impact when landing Can walk (see FIG. 10). The air pressure is adjusted via an air injection valve (8) using a hand pump provided separately. A hand pump for a competition ball may be used.

It is a typical example of a shoe for walking with a small crotch characterized by a flat-bottomed sole (2) and a flexible toe bottom (3). It is an example using the means 1, and is an example of the sole (1) closest in shape and characteristics to a general shoe. FIG. 1 is an example of a low-bottom shoe suitable for walking with a leg according to the first embodiment of the present invention, and is a partially cut-away cross section of a shoe which is a conventional shoe-shaped and flexible toe-bottom ground contact surface (31). It is the front view shown by. FIG. 2 is a plan view of the bottom (1) excluding the crust (11) of FIG. 1, and is a partial cross-sectional view taken along line AA-BB. Since the bottom (1) is symmetric, the left side will be omitted and only the right shoe will be shown below.
First, the overall configuration will be described. The bottom (1) is a tall shape in the lower part, and the bottom (2) of the highly elastic support structure and the flexible toe bottom (3) are connected to the front and rear. 13), the insole (12) located on the upper part, and the upper part (11) located on the uppermost part are integrally formed. The bottom (2) is provided with a main air chamber (4) at the center between the middle bottom (12) of the bottom and the ground plate (9) so as to extend and support in the vertical direction. A foam (6a) is provided which is stretched and supported at the bottom, and a vent valve (7) which penetrates and communicates with the insole (12) through a vent (46) indicated by a dotted line is formed on the upper side of the inside of the insole (12). The auxiliary air chamber (5) equipped with an air injection valve (8) at the end made of a long flexible tube is rotated around the lower part of the upper shell (11) and the upper part of the midsole (12). And connected to the vent valve (7).

Next, a detailed configuration will be described.
The main air chamber (4) is horizontally expanded and contracted by a horizontal partition wall (43) provided with a communication port (45) shown in FIG. 2 in a space surrounded by the top wall (41), the side wall (42) and the ground wall (44). A bellows type air chamber that is constrained to expand and contract in the vertical direction. The entire outer surface of the top wall (41) provided with a vent (46) indicated by a broken line is the inner bottom (12) and the outer surface of the ground wall (44). The entire surface is connected to the ground plate (9). As shown in the lower part of FIG. 2, one end of the vent pipe (77) is connected to the vent hole (46) and penetrates the insole (12) from the bottom to the top. It is the example which penetrated the buttocks left side surface of the upper shell (11) through the side. As an alternative method, the insole (12) may be thickened so as to penetrate from the bottom up to the middle layer, and from there to penetrate outside the left side surface of the lateral collar. The vent valve (7) is connected to the vent pipe (77) and is provided on the left side surface above the collar of the midsole (12). The auxiliary air chamber (5) is made of a flexible tube. One end of the auxiliary air chamber (5) is connected to the vent valve (7), and is connected to the outside of the connecting portion between the insole (12) and the upper shell (11) from the left side of the buttocks. Around the toes, it is arranged around the toe by bonding, and an air injection valve (8) is connected to the tube end. The condition of the arrangement and structure of the auxiliary air chamber (5) is to prevent the outer wall from receiving the supporting pressure applied to the bottom (2). Therefore, the alternative installation location may be provided with a thick structure of the insole (12), and the toe bottom (3) may be provided with a non-flexible thick structure.
The main air chamber (4) communicates with the sub air chamber (5) through the vent valve (7), so that almost all of the internal air is released to the sub air chamber (5) side against the compression load from above and below. It has a highly elastic structure with a mechanism that can Therefore, the bottom (2) composed of the main air chamber (4) and the highly elastic foam (6a) has a highly elastic compressible structure. The compressible range is an example of a compressible height of about 3 cm indicated by X in FIG. Moreover, the toe bottom (3) is an example having a flexible structure that is easily bent by the depression pressure. In other words, the toe grounding surface (31) supports the wearer's weight by changing the support point while curving from the part directly below the toe up to the toe ascending to the heel of the foot (U) along the sole of the wearer. However, the moving state of the support point is defined as a dynamic support point trajectory (T), the toe bottom (3) position on the paper surface of FIG. Draw).

FIG. 3 is an enlarged view of the vent valve (7), (a) is a front sectional view, (b) is a side view thereof, and a part (a) is a sectional side view taken along line CC. The ventilation pipe (77) is airtightly connected to the sub air chamber (5) on the left side of the horizontal pipe portion of the T-shaped tubular body (71) and passes through the body (71) to ventilate the main air chamber (4). Provided in airtight connection with the mouth (46). The push valve (72) is configured such that the screw portion (74) moves up and down with the inner surface of the vertical hole of the main body (71), and the ventilation pipe (77) is crushed from the outside via the protective pipe (75) to ventilate. It is a structure with a mechanism for changing the cross-sectional area, and does not cause a leak of ventilation from the valve body. Incidentally, the vent valve (7) body (71) is made of synthetic resin and the outer tube has an outer diameter of 10 mm. The vent tube (77) is made of vinyl chloride and has an inner diameter of 2 mm, an outer diameter of 4 mm, and a secondary air chamber (5). Is an example of a rubber long tube having an outer diameter of 10 mm.

4 is an enlarged view of the air injection valve (8), (a) is a front sectional view, (b) is a side view thereof, and a part thereof is a sectional side view taken along the line DD of FIG. A male valve (82) is inserted and fitted between the inner wall recess of the cylindrical body (female valve) (81) and the tension membrane (86) to be elastically clamped, and stretched at the tip of the air injection needle insertion port (84). The structure is provided with a cut surface (85) that reaches the through hole (88) of the membrane (86), and is the same structure as the air injection valve of a game ball such as a soccer ball, and the air injection needle is inserted into the air injection needle insertion port (84). ) Through the cutting surface (85), inserted into the through hole (88) and injected with compressed air, and then withdrawing the injection needle, the cutting surface (85) is elastic and tension membrane of the male valve (82) material. (86) Elastic and secondary air chamber (5) Closed by air pressure. A tubular body (female valve) (81) is provided with a connecting portion (89) at the right tip portion and connected to the auxiliary air chamber (5). Further, although the inside of the mouth and jaw portion (87) is not shown, a sealing plug can be fitted. Incidentally, the outer diameter of the main body is 10 mm, and the inner diameter of the air injection needle insertion port (84) is 2 mm.

The above is the detailed structure, but there are two important points to note that the bottom of the present invention (2) high elastic support characteristic is also a necessary condition. One is a length in which the support height (Y) from the support base point (S) when both legs are vertically standing is compressed and lowered while supporting the compressible height (X), that is, the weight load applied by the standing leg operation. It is preferable that there is about one half or more of the above. In other words, it is preferable that the base of the heel (2) is highly supported when standing on both legs and sinks greatly when the weight is moved toward one leg. By controlling the sinking speed by crushing the ventilation cross-sectional area of the ventilation pipe (77) with the ventilation valve (7), it is possible to walk while supporting the hip joint position (H) at the upper end of the leg at a certain height (2) It becomes. For this purpose, it is desirable that the internal volume of the sub air chamber (5) is equal to or larger than the internal volume of the main air chamber (4), ideally 2 to 3 times. Second, it is preferable that the ratio to the bottom load (2) full load supported by the main air chamber (4) is 30% or more. If the amount is too small, there is a risk that the above-described lack of control of the sinking speed may occur.

As for pre-adjustment, the method of using the footwear sole (1) of the present invention performs pre-adjustment for wearing. The compression performance of the bottom (2) includes the common air pressure (hereinafter referred to as air pressure) of the main air chamber (4) and the sub air chamber (5), and the main air chamber (4) and the sub air chamber (4). Two adjustments of the ventilation resistance of the ventilation pipe (77) communicating the internal air of the air chamber (5) are adapted to the weight of the wearer and the desired pace.
The procedure is as follows: first, as a weight adjustment, the air pressure is applied to the reference point (S) where the bottom (2) the ground contact surface is the lower limit support position shown in FIG. Adjust pressure to balance and rest at position. The air pressure is adjusted using a separate air injection air pump (common with the game ball) and the air injection valve (8). Next, as a step preparation, turn the adjusting screw (73) of the vent valve (7) to adjust the speed at which the bottom (2) is compressed and lowered to the reference point (S) by one leg stand, that is, the time required to reach the lower limit support position. Then adjust the ventilation resistance to match the desired walking time from landing to vertical stand. The bottom of the vent valve (7) (2) The compression drop speed adjustment principle is that when the main air chamber (4) is compressed when the adjustment screw (73) is turned to change the ventilation cross section and change the ventilation resistance A part of the internal air is retreated from the main air chamber (4) to the sub air chamber (5), but the retreat speed changes and the bottom (2) compression drop speed changes. The retracted internal air returns to the original state during the swing leg period in which the main air chamber (4) and the unloaded saddle bottom (2) returns to the air after the crossing of the walking motion and before landing.

The relationship between the movement of the legs and feet and the shape of the bottom (1) is described as follows: the legs with the upper and lower legs of the supporting legs that support the body in walking movements extended straight with knees (hereinafter referred to as straight legs) The “straight leg walking”, a walking method that repeats walking, walking, stepping, crossing, center of gravity, and stepping without using the large muscles of the upper thighs, is ideal for walking that is powerful and long. Is the method. FIG. 10 is a diagram illustrating the walking motion state of Example 1 of the first embodiment shown in FIG. 10, where (a) is the hip joint position (H) reference, and (b) is the ground (GL) reference. It is. An ideal heel (2) is a heel portion having a highly elastic structure that can support a weight while expanding and contracting like the shoe in this figure. The footwear bottom (1) of the present invention, as explained in the pre-adjustment in the preceding column (0018), has a bottom support (2) support characteristic that reaches the lower limit support height time related to the air pressure and compression drop speed of the main air chamber (4). As a result, the locus of the support base point (S) is not limited, and the height of the hip joint (h) is long from the support base point (S) where the center of FIG. 10A is the hip joint position (H) and the radius (R) is the vertical stance position. 1 and 2 can be pre-adjusted so as to approach the arc A (A1) of the foot, so that the pre-adjusted bottom tread (1) shown in FIGS. 1 and 2 is a footwear bottom (1) suitable for straight leg walking. Yes.
Incidentally, when trying to walk straight legs with conventional shoes, the vertical movement (Δh) of the waist (hip position) of about 3 to 8 cm occurs geometrically and physically as shown by the symbol Δh in FIGS. In particular, it can be understood that the large-scale walking shown in FIG. 15 is difficult to implement due to a large impact on each joint.

To describe the wearing method, the bottom (1) that has been pre-adjusted can be walked straight legs efficiently in the following manner, while keeping the pace determined during the pre-adjustment, that is, the number of steps per hour. The bottom (1) of the present embodiment is an example of 20 ° before 20 ° to 20 ° after the open leg range (δ) for a small crotch open leg. The hip joint position (H) shown in FIG. This is an example in which the vertical movement (Δh) is zero, and it is effective as shown in the example of FIG. The point of walking is to imitate the movement of Fig. 10 (b), and the main point is the body movement (from the rear leg to the front leg) performed by the double support of landing and crossing shown by the thick arrow D. In other words, while taking the crossing from the rear leg to about 20 ° to 23 ° and the bottom (1) from about 9 ° to about 20 °, the ankle The bottom leg (2) is swung down from the upper front toward the ground directly below the body with the straight leg fixed at a right angle, and operates to push the ground downward with the bottom (2). Other actions are the same as normal walking.

Hereinafter, the operation of the heel bottom (2) and the toe bottom (3) will be described with reference to FIG. The straight leg walking is a walking in which the supporting leg supporting the weight is not bent at the knee, and as shown in FIG. 10 (b) in the hip joint position (H) reference and ground (GL) reference walking operation state diagram, From the anatomical and mechanistic viewpoint, it is necessary and sufficient to maintain a certain height of the hip joint position (H). (A) From the figure, the hip joint position (H) becomes lower as the leg is widened in the open leg movement in the straight leg walking, but as one focus point, the hip joint position which becomes lower by the straight leg open action on the footwear base (1) (H) If a function to compensate for the height can be added, it can be seen that it becomes a footwear bottom (1) suitable for walking on a straight leg. FIG. 10 is only one model diagram, but the necessary conditions obtained in this diagram are geometrically universal and effective.
(A) The figure is a walking motion state diagram in which the hip joint position (H) is fixed as a reference point, and the movements of the legs, feet (1), the ground (GL), etc. are relatively depicted as moving bodies. From the top to the bottom of the figure, the center H is the hip joint position (H), the one-dot chain line that opens downward from H shows the stance that supports the hip joint position (H), and z is the knee position. , Δ is an open leg width and small crotch walking case, β is an open leg angle, γ is a foot / bottom rotation angle, K is a heel position, and the shoe model below is the embodiment shown in FIGS. The bottom (1) is shown. The arc A (A1) is a locus of the support base point (S) of the base (2), and is a locus during straight leg walking without vertical movement (Δh) of the hip joint position (H), and is an arc having an important meaning. . Looking at the shoe model on the right side of the figure, the small solid arc indicated by T is the dynamic support point trajectory of the toe bottom (3) grounding surface (31), and the model shoe rotates by 20 ° and the ground (GL ) And the point contact, it can be seen that the heel (K) is supported so that the support base point (S) passes on the arc A (A1), and the standing leg supports the hip joint position (H) at the upper end. The ground (GL) of the horizontal one-dot chain line below it shows a state of moving to the right as indicated by an arrow as the walking motion proceeds. The landing point (p1), the toe separation point (p2) and the vertical stance position ( p3) is appended. Below that is walking with a straight leg, (1) is landing and crossing, (2) is weight shift, and (3) is stepping (for details, see the relationship diagram between walking state and walking cycle). The two thick arrows (→) indicate the distance length double supported (D) by the front and rear legs, and the bottom is the bottom (1) outer bottom (1) of the first embodiment shown in FIGS. 13) shows the action position range (A3) of the heel bottom (2) and the action position range (A4) of the toe bottom (3). The range of A3 is supported by controlling the compression lowering speed of the bottom (2) of the telescopic support structure, and the range of A4 is manipulated by the bottom (1) with the ground contact surface (31) of the toe bottom (3) as a standing leg, It is a state figure which is walking straight legs with the hip joint position (H) held at a certain height.
(B) The figure is a walking movement state diagram with respect to the ground (GL). It is a diagram showing a movement trajectory of the hip joint position (H) from above, holding the height (h) constant at h = 85 cm, and moving horizontally linearly without vertical movement (Δh = 0). (1) (2) (3) The operation stroke classification is added. D indicates a double support length, and is shown as being capable of stable weight movement at a normal stride of 0.1 steps. The inclination of the one-dot chain line below it is in the state of supporting the stance, and the leg opening angle (β) and the foot rotation angle (γ) are indicated in parentheses (β, γ). The bottom two-dot chain line is the fixed ground (GL), and the stride (L), the leg stride (La) from the toe separation point (p2) to the landing point (p1), and the inversion width (Lb) are added. . In this figure, the horizontal line indicated by H and GL is first shown by p3 in FIG. 6A, assuming that the height (h) of the ground (GL) to the hip joint position (H) is kept constant. Drawing with the height (h) fixed, and then linking the straight legs (one-dot chain line) and the shoe model, and filling the space between the upper and lower horizontal lines while moving (β, γ) without error It is.
From the walking motion state diagrams of (a) and (b) above, if the compression characteristic function in which the locus of the support base point (S) is an arc A (A1) can be added to the base (2) of this embodiment, the vertical movement It can be seen that there is a bottom (1) where Δh = 0 without a straight leg.

Second embodiment

Hereinafter, a second embodiment of the present invention will be described. First, the configuration will be described.
(B) A tall culm bottom below a highly elastic support structure that supports at least the main air chamber (4) between the midsole (12) and the grounding plate (9) of the culm bottom, extending and contracting vertically. A bottom (1) comprising (2) and a toe bottom (3) of a non-flexible structure comprising a ground contact surface (31) curved in a downward convex shape is used.
(B) A vent valve (7a, 7b) that connects to and communicates with the vent (46) of the main air chamber (4) is provided on the upper side of the side of the midsole (12). Then, the auxiliary air chamber (5) formed by arranging the auxiliary air chamber provided with the air injection valve (8) at the end made of a long flexible tube → the vent valve sequence in a plurality of times in a row is provided with a bottom (2) It arrange | positions in the place which does not receive direct support pressure other than, and connects with the said vent valve (7).
With the above configuration, a function is added to the heel sole (2) that keeps the support height of the hip joint position (H) high and constant during the operation from the “placement to vertical stance position”, and the stepping into the toe bottom (3) A function is added to keep the support height of the hip joint position (H) at a level crossing high and constant. Then, in the same manner as in the first embodiment, after the adjustment of the support strength at the lower limit support height and the time required to reach the lower limit support height is completed, the open leg width (δ) is widened and the hip joint position (H) height is increased. Can be walked on a straight leg while keeping a constant (see FIGS. 11 and 12).

The most typical example of the bottom (1) suitable for walking with open legs in the middle crotch and suitable for straight leg walking is that the sole (2) uses the means 2 and the entire bottom (1) is 1 of the footwear using the means 4. It is an example. FIG. 5 is a partially cutaway front view of a middle leg open leg shoe suitable for walking with a leg according to the second embodiment of the present invention, and FIG. 6 is a plan view excluding the upper shell (11) of FIG. And it is a partial EE-FF line sectional top view.
First, the overall configuration will be described. The bottom (1) has a tall shape with a tall bottom and a highly elastic support structure (2), and the ground contact surface (31) has a downwardly convex cylindrical shape with a circular arc in its cross section, and the center point is the hip joint position (H ) And the toe bottom (3) of the inflexible structure in which the cross-sectional radius (R) is the length of the hip joint height (h) from the ground (GL) to the hip joint position (H) when standing vertically The three members of the outer bottom (13) connected to the inner bottom, the insole (12) located on the outer bottom (13), and the upper shell (11) located on the uppermost part are integrally formed. The bottom (2) is provided with a main air chamber (4) which is extended and supported in the vertical direction at the center between the bottom (12) of the bottom and the ground plate (9). A V-shaped leaf spring (6) that is extended and supported in the vertical direction is provided, and a covering body (6b) that is extended and extended in the vertical direction is provided on the outermost peripheral portion, and the vent (46) of the main air chamber (4) is provided. ) And vent holes (7a, 7b) penetrating through the insole (12) on the upper sides of the left and right sides of the insole (12), and an air injection valve (8) at the end made of a long flexible tube. The auxiliary air chamber (5) provided is provided by being rotated around the lower part of the upper shell (11) and the upper part of the midsole (12) and connected to the vent valves (7a, 7b). In FIG. 5, X is the compressible height (X) of the bottom (2), and S is the support base point (S) that is the lower limit support height at which the bottom (1) is horizontal when it stands vertically. The bottom (2) has a lower limit arrival time adjustment function and a support strength adjustment function when landing.

  Next, a detailed configuration will be described. However, since the precautions of the compressible structure of the vent valve (7), the air injection valve (8), and the bottom (2) are the same as those of Example 1 of the first embodiment, the description thereof is omitted. In the main air chamber (4), the space enclosed by the top wall (41), the side wall (42) and the ground wall (44) is restricted by the horizontal partition wall (43) provided with the communication port (45), and the vertical expansion and contraction is restricted. A bellows type air chamber that can be expanded and contracted in the direction. The entire outer surface of the top wall (41) provided with a vent (46) indicated by a broken line is the middle bottom (12), and the entire outer surface of the ground wall (44) is the grounding plate. Connected to (9). As shown in the lower part of FIG. 6, one end of the vent pipe (77) is connected to the vent (46) and penetrates the insole (12) from the bottom to the middle layer. It is an example provided penetrating to the left side. Then, the vent valve (7a) is connected to the vent pipe (77) and is provided on the left side surface above the collar portion of the midsole (12). The auxiliary air chamber (5) is made of a flexible tube, and one end of the auxiliary air chamber (5) is connected to the vent valve (7a), and is connected to the outside of the connecting portion between the insole (12) and the upper shell (11) from the left side of the buttocks. A vent valve (7b) is connected to the right side of the buttocks around the toes, and is adhered and arranged almost once around the toe, and an air injection valve (8) is connected to the tube end. The main air chamber (4) communicates with the sub air chamber (5) through the vent valves (7a, 7b), so that almost all of the internal air can be released to the sub air chamber (5) side. It has an elastic structure. Therefore, the bottom (4) composed of the main air chamber (4), the highly elastic V-shaped leaf spring (6) and the covering (6b) has a highly elastic structure, and the compressible range is indicated by X in FIG. The height is an example of about 5.5 cm. The toe bottom (3) has a non-flexible structure that does not bend due to the depression pressure, and the ground contact surface (31) has a center point at the hip joint position (H) of the wearer and a contact surface cross-sectional radius (R) vertical. This is an example in which the hip joint position (H) when standing, that is, R = h = 85 cm.

FIG. 7 is a perspective view of the V-shaped leaf spring (6). The V-shaped leaf spring (6) is connected to the upper and lower planar U-shaped plate top plate (62) and the ground plate (63) at the right upper and lower ends of the two spring portions (61) arranged side by side in a thin line circle. The top surface of the top plate (62) is the middle bottom (12), the bottom surface of the base plate (63) is the ground plate (9), and the rear end (65) is the bottom (2). ) Secured toward the rear end. And a main air chamber (4) is arrange | positioned in a center space part, and a covering body (6b) is arrange | positioned in an outer side space part, and it uses as a highly elastic support structure of a heel bottom (2). The spring part (61) is preferably an elastic body, and the other part is preferably a rigid inflexible member. The outer covering (6b) is for concealing the inner side, and it is preferable to use a rubber cloth, polyurethane foam, melanin foam or the like having a large expansion / contraction as the material.

The bottom (2) is an example of a bottom with a compressible height of about 5.5 cm which is taller than Example 1 of the first embodiment, and the support characteristics of the elastic structure are more sufficiently elastic. (See column 0017).

As for the pre-adjustment, as in the first embodiment, the air pressure is adapted to the weight of the wearer and the desired pace. First, as a weight adjustment, the air pressure is adjusted at the reference point (S) where the bottom (2) the ground contact surface is the lower limit support position shown in FIG. Adjust to a balanced and static pressure. Next, the time required for reaching the lower limit support position, which is the speed at which the heel bottom (2) is compressed and lowered to the reference point (S) by a single leg stand, is adjusted by two-step adjustment. An example of the procedure is as follows. After confirming the height (Y) from the support base point (S) where both legs stand vertically and stand still, the height of both legs is reached by the first stage vent valve (7a). When the time is set to 1/3 of the time required to reach the lower limit support, the walking action is performed by adjusting the time required for the walking operation from the landing to the vertical standing position in accordance with the wearer's pace with the second stage vent valve (7b). When the support base point (S) of the bottom (2) is between the landing position and the vertical stance position, the center surface as shown in FIG. Hip height (h) at position (H) is elastically supported so as to draw a locus close to arc A (A1) of R = h = 85 cm, and the leg position is maintained with the hip position (H) height almost constant. I can walk.

In the second embodiment, the method for wearing the bottom (1) of Example 1 will be described. Like the bottom (1) of Example 1 of the first embodiment, the pre-adjustment of the front column (0027) has been completed. It is only necessary to wear the bottom (1) and walk straight legs efficiently in the following manner while keeping the pace determined at the time of prior adjustment, that is, the number of steps per hour. The bottom (1) of the present example is an example of the range of 25 ° before and 25 ° after the open leg range (δ) for the middle thigh open leg, and the hip joint shown in Example 1 walking motion state diagram of FIG. 11 second embodiment. This is an example in which the position (H) height can be kept constant, but even with a walking with a wide stride as shown in FIG. This is effective because the vertical movement (Δh) of the waist is reduced (see FIG. 15 for a conventional shoe example). The point of walking is to imitate the movement of FIG. 11, and the main point is the body movement (from the rear leg to the front leg) that is performed by double support of landing and crossing shown by the thick arrow, that is, the rear While taking the leg crossing from about 25 ° to about 28 ° with the leg and from the bottom (1) to the bottom flexion rotation of about 10 ° to about 18 °, the front leg moves from the landing position to the vertical stance position at a right angle. The bottom leg (2) is swung down from the upper front to the ground directly below the body with the straight leg fixed to the base, and the ground bottom (2) is pushed downward. Other actions are the same as normal walking.
In other words, as can be seen from the figure, when the leg width requirement (δ) is 50 ° and the middle leg is applied, the leg and foot movement requirements are about 18 to 25% from the landing to the half-depression, and from the half-depression to the level crossing. This is the bottom (1) that can carry out straight leg walking, which is a bottom bent rotation / straight leg, while maintaining a constant hip joint position (H) height.

An example of the bottom (1) which is the most typical large leg open leg walking and suitable for straight leg walking, the foot sole (2) uses the means 3 and the bottom (1) as a whole uses the means 4 footwear bottom. This is an example of (1). FIG. 8 is a partially cutaway front view of a large leg open leg shoe suitable for walking with a leg according to the second embodiment of the present invention, and FIG. 9 is a plan view excluding the upper (11) of FIG. FIG. 5 is a partial plan view taken along line GG-HH.
First, the overall configuration will be described. The bottom (1) is a saddle bottom (2), which is a highly elastic support structure that is tall in the downward direction, and the ground contact surface (31) is a downwardly convex cylindrical shape with a circular arc in its cross section, and the center point is the hip joint position ( H) and the toe bottom (3) having a non-flexible structure in which the ground plane cross-sectional radius (R) is the length of the hip joint height (h) from the ground (GL) in the vertical stance is connected to the front and rear. The three members of the outer bottom (13), the midsole (12) located on the outer bottom (13), and the upper shell (11) located on the uppermost part are integrally formed. The bottom (2) has an outer main air chamber (4a) and an inner main air chamber (4b) supported by expanding and contracting in the vertical direction at the center between the middle bottom (12) and the ground plate (9). The double bellows type main air chambers (4) are arranged, communicated with the vent holes (46) provided in the respective air chambers, penetrated through the midsole (12), and the upper left side of the midsole (12) Two composites with vent valves (7a, 7b, 7c, 7d) in two stages on the upper side of the right side, and injection valves (8a, 8b) at the end made of each long flexible tube A secondary air chamber (5) of the mold is arranged around the lower part of the upper shell (11) and the upper part of the midsole (12), and is connected to the vent valves (7a, 7b, 7c, 7d). In FIG. 8, X is the compressible height (X) of the bottom (2), and S is the support reference point (S) of the lower limit support height at which the bottom (1) is horizontal when it stands vertically. The bottom (2) has a lower limit arrival time adjustment function and a support strength adjustment function when landing.

Next, a detailed configuration will be described. However, since the vent valves (7a, 7b, 7c, 7d) and the air injection valves (8a, 8b) are the same as those in the first embodiment, the description thereof is omitted.
As shown in FIGS. 8 and 9, the main air chamber (4) has a horizontal partition wall (43) provided with a communication port (45) in a space surrounded by the top wall (41), the side wall (42) and the ground wall (44). ) Is a main air chamber (4) composed of two air chambers, an accordion type outer main air chamber (4a) and an inner main air chamber (4b), which are supported in such a manner as to restrain lateral expansion and contraction in the vertical direction. The entire outer surface of the top wall (41) provided with two vent holes (46) is connected to the midsole (12), and the entire outer surface of the ground wall (44) is connected to the ground plate (9). As shown in the center part of FIG. 9, the two vent pipes (77) are connected at one end to a vent hole (46) indicated by a broken line and penetrate the middle bottom (12) from the bottom to the middle layer. This is an example of penetrating to the left side surface of the heel (2). The main air chamber (4) communicates with the auxiliary air chamber (5) and the vent pipe (77) through the vent valve (7), so that the total amount of internal air against the total compression in the vertical direction due to the standing load. Is a structure that can escape to the sub air chamber (5) side, and the larger the sub air chamber, the higher the elasticity. The bottom (4) of the main air chamber (4) of the inner and outer two air chambers has a compressible range indicated by X in FIG. 8 and descends from the landing height to the support base point (S) with a single leg vertical stand. The compressible height (X) is very high, about 9 cm, for walking on the crotch, and the requirements for the highly elastic structural properties to meet this are particularly severe. This example is a highly elastic sole (4) that keeps the shoe sole horizontal and both legs stand vertically and the remaining compressible height floats and balances at an intermediate height of about 4.5 cm or more. The toe bottom (3) is a non-flexible structure with a long toe and does not bend due to the depression pressure, and the ground contact surface (31) has a center point at the hip joint position (H) of the wearer and a contact surface cross-sectional radius ( This is an example of the bottom (1) having a bottom length of 30 cm, in which R) is the height of the hip joint (h) when standing vertically, that is, an arc surface of R = h = 86 cm.

Sole bottom (2) The pre-adjustment method for adjusting the elastic characteristics to the weight of the wearer and the desired pace is basically the same as that of the first embodiment (see the column 0027), and the description is omitted.

The method of wearing the bottom (1) of the second embodiment will be described. Like the bottom (1) of the first embodiment, the bottom (1) that has been pre-adjusted (see the column (0027)) is put on and the straight leg is worn. It is only necessary to walk, but since the compressible height is as high as about 9 cm, it is important to follow the pace determined at the time of prior adjustment, that is, the walking pitch that is the number of steps per hour. This is because, when walking at a walking pitch that is slightly faster than the target pitch, the waist position becomes slightly higher and balance is reached, but when the pitch becomes too slow, the waist falls. The bottom (1) of this example is an example of 30 ° front to 30 ° rear and 60 ° open leg width (δ) specifications for a large leg open leg (δ). Example 2 As shown in the walking motion state diagram, the hip joint position (H) height can be kept constant, but the double support length (D) with a further increased stride can be maintained even if the running pitch is maintained. It is valid. The manner of walking may be implemented by imitating the operation of FIG. The main point is the movement of the body (from the rear leg to the front leg) performed by double support of landing and crossing indicated by the thick arrow, that is, from the rear leg from about 30 ° to about 34 °, the bottom (1) While taking the crossing movement from about 12 ° to about 28 ° rotation, from the landing gear to the vertical stance position with the front leg, with the straight leg with the ankle fixed at a right angle, the saddle sole (2) is directly below the body from the upper front It is to swing down toward the ground at once and operate to push the ground downward at the bottom (2). For large legs, it is especially important to pay attention to safety because it has a large amount of bounce and increases the step length and speed. Other actions are the same as normal walking.
In other words, as can be seen from FIG. 12, when the large leg walking with an open leg width of 60 ° is applied, the movement requirement is from an anchored straight leg from the landing to the middle stepping, and from the stepping half to the level crossing from about 0 ° to 28 °. A straight leg walk with a step width of about 98 cm that can bend and rotate at 0 ° can be carried out while keeping the hip joint position (H) constant.

The condition of the shape of the toe bottom (3) of the inflexible structure, that is, the ground plane cross-section radius (R), for allowing the leg to walk with the hip joint position (H) height kept constant in the means 4 will be described. When the radius (R) length is the hip joint height (h) and the center point is the hip joint position (H), the support height (h) of the straight leg with ankle fixed at right angles to the leg is the toe bottom (3 ) Is always constant as long as it is an open leg range on the ground contact surface (31) (see FIG. 10A). It is the easiest walking because of the immobility of the ankle. When the length of the cross-section radius (R) of the ground plane decreases as the center point decreases from the aforementioned hip joint position (H) to the knee (z) height, the shortened portion becomes the bottom (1) The ground plane is bent to the bottom of the foot・ It is necessary to compensate by maneuvering with dorsiflexion, but if you add plantar flexion or dorsiflexion, you can walk straight legs while keeping the hip joint position (H) height constant. Also, the stride (L) increases. However, if the radius (R) is further shortened, the hip joint position (H) height is maintained geometrically even when a foot flexion or dorsiflexion is applied during large hip walking with a wide open leg range. It becomes impossible to sink. Accordingly, the range of the radius (R) of the cross section radius (31) of the toe bottom (3) indicated by the means 4 is effective.

The material for the insole (12) is a light, rigid and strong synthetic resin. As the material of the bottom (1) ground contact surface, a material such as rubber, a synthetic resin, or the like that is in close contact with the road surface and hardly slips and wears is used.

  The first embodiment of the present invention, Example 1 is an example of a flat-bottomed shoe suitable for walking on a straight leg, and is a partially cutaway sectional front view of a shoe, which is a conventional shoe-shaped and flexible toe-bottom ground contact surface (31).   It is a top view except the upper shell (11) of FIG. 1, and a partial sectional view on the line AA-BB   It is an enlarged view of a ventilation valve (7), (a) is a partial cross-sectional front view, (b) is a side view of the partial (a) CC line cross-sectional side view   It is an enlarged view of an air injection valve (8), (a) is a partial cross-sectional front view, (b) is a side view thereof, and is a partial cross-sectional side view taken along line DD in (a).   The second embodiment of the present invention, Example 1 Partially cut away cross-sectional front view of a middle leg open shoe suitable for straight leg walking   It is a top view except the upper (11) of FIG.   Perspective view of reinforcing body V-shaped spring (6)   Second embodiment of the present invention, Example 2 Partial cutaway front view of a crotch walking shoe suitable for straight leg walking   Fig. 9 is a plan view excluding the upper shell (11) in Fig. 8 and a partial plan view taken along the line GG-HH.   FIG. 2 is a diagram illustrating a walking motion state of Example 1 of the first embodiment, where (a) is a hip joint position (H) reference and (b) is a ground (GL) reference.   Example 1 walking movement state diagram of the second embodiment   Example 2 walking movement state diagram of the second embodiment   Walking operation state diagram for walking on the crotch for Example 1 of the second embodiment   Small crotch walking movement state diagram of conventional shoes   Figure of walking movement of conventional shoes   Relationship diagram between walking state and walking cycle

Explanation of symbols

1 bottom,
11 Crust,
12 insoles, 121 insoles,
13 Outer bottom,
2 Sole bottom 3 Toe bottom, 31 Ground plane 4 Main air chamber, 4a Outside air chamber, 4b Inside air chamber 41 Top wall, 42 Side wall, 43 Horizontal bulkhead, 44 Ground wall,
45 Communication port 46 Ventilation port 5, 5a, 5b, 5c, 5d Sub air chamber 6 V-shaped leaf spring,
61 Spring part, 62 Top plate, 63 Base plate, 64 Connection part, 65 Rear end part 6a Foam, 6b Cover body 7, 7a, 7b, 7c, 7d Ventilation valve,
71 Body, 72 Valve, 73 Adjustment screw, 74 Screw part, 75 Protection tube,
76 pedestal, 77 vent pipe, 78 main air chamber side shielding material, 79 sub air chamber side 8, 8a, 8b air injection valve,
81 tubular body (female valve), 82 male valve, 83 male valve large diameter part,
84 air injection needle insertion port, 85 cutting surface, 86 tension membrane, 87 mouth jaw,
88 through hole, 89 connecting part 9 grounding plate A1 arc A
D double support length h hip joint height Δh vertical movement H hip joint position K heel position L step length La bottoming width Lb leg step length R ground surface cross section radius S support base point T dynamic support point trajectory U main base ball part X compressible Height Y Both leg stand height α Contact surface inclination angle (example of α = 0)
β leg inclination angle γ foot rotation angle δ spread leg width

Claims (4)

  In the bottom (1) provided with a bottom (2) having a tall and highly elastic support structure below the main air chamber (4), the main air chamber (4) is used for air injection for adjusting the internal air pressure. The auxiliary air chamber (5) having the valve (8) communicates with the elastic characteristic adjusting vent valve (7) disposed outside the bottom (2) and communicates outside the bottom (2). Footwear bottom suitable for straight leg walking characterized by having.   The bottom (1) according to claim 1, wherein the auxiliary air chamber (5) is arranged in a line by repeating the auxiliary air chamber → the order of the vent valve a plurality of times and communicates with a straight leg. Suitable footwear bottom.   The bottom (1) according to claim 2, wherein the main air chamber (4) comprises a plurality of main air chambers (4a, 4b, 4c) divided in the lateral direction, and the main air chamber (4a, 4b, 4c) Footwear bottom suitable for straight leg walking, characterized in that it communicates with each auxiliary air chamber (5).   The heel base (2) according to claims 1 to 3, and a ground joint surface (31) having a downwardly convex cylindrical shape, and a ground contact section radius (R) is a knee joint center point when the wearer is vertically standing on one leg. Footwear bottom suitable for straight leg walking characterized by a bottom (1) with a non-flexible toe bottom (3) that is between the length from the contact point to the contact point and the length from the hip center point to the contact point .

Images